A bag consists of 4 different colored marbles. The probability of drawing each is as follows:
P (Blue)=. 4 P (Red)= .2 P (Purple)= .3 P (Black)= .1
You draw a marble out of the bag and then replace it.
What is the probability that you draw:
a. A red marble first and a blue marble second?
.2 * .4 = 8%
b. A black marble first and a purple marble second?
.1 * .3 = 3%
c. A red or blue marble?
.2 + .4 = 60%
d. A gray marble?
Are these answers correct?